Benefits of Overload for Fatigue Cracking at a Notch

JH Underwood; JA Kapp

doi:10.1520/STP28790S

SYMPOSIA PAPER Published: 01 January 1981

STP28790S

Benefits of Overload for Fatigue Cracking at a Notch

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Tests are described which measure the effect of compression overload on fatigue crack initiation and growth from a 0.1-mm-radius notch in alloy steel K_Ic specimens.

Other tests are described which measure the effect of tension overload on fatigue crack initiation and growth from a 3.4-mm-root-radius notch in similar specimens.

The effect of overload on the number of cycles required for crack growth is described for both types of tests in relation to a residual stress model.

Author Information

Underwood, JH

U.S. Army Armament Research and Development Command, Large Caliber Weapon Systems Laboratory, Benet Weapons Laboratory, Watervliet, N.Y.

Kapp, JA

U.S. Army Armament Research and Development Command, Large Caliber Weapon Systems Laboratory, Benet Weapons Laboratory, Watervliet, N.Y.

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Details

Developed by Committee: E08

Pages: 48–62

DOI: 10.1520/STP28790S

ISBN-EB: 978-0-8031-4809-3

ISBN-13: 978-0-8031-0732-8

Benefits of Overload for Fatigue Cracking at a Notch

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